Warm air furnace



Patented May 4, 1943 N-lTE-.D STATE- iibli @SENSE 'WARM FURNACE 'Adam Ramber, Youngstown, Ohio Application .September 9, 1942"Serial No. '457,688

` (ci. Vieri- 115) 2 Claims.

This invention -relates to a warm `air furnace. The principal object of this Yinvention `is the provision of a warrn vair a novel radiating section formed integrally therewith.y

furnace provided with? Afurther object of the invention is the .provi-V l sion of a warm air furnace associated with the said vradiator section 'for conveniently removing the fly ash, soot and Lother products of combustion deposited therein.

A still further object of the invention is kthe provision of a warm air furnace wherein 'ithe degree oi heat exchange is relatively 'high due to the formation of the radiator portion thereof.-

'The warm air furnace, the subject lof this invention, has been designed to obtain the 'highest degree of heat transfer possible lin vthat there chamber and radiating areas of the furnace nare so 'constructed that'the hot gases,`the products of combustion, are directed on a horizontal'plane through and around Aa series-of baiies'which, iin connection 'with the furnace, form a combined fire chamber and .radiating structure. The radiating area of the furnace structure 'comprises an area relatively greater ployed in various radiator structures attached to or forming a part of the warmair furnaces. The formation of the relatively larger radiating structure in connection with the fire chamber structure is madepossi-ble through the novel priovision 'of Vmeans for positively removing 'at ire-L quently intervals, the fly ash andother'deposited products "of combustion which normally tend tto l-l up and thereby block the passageway'through radiating'structures particularly when used with co'alas the fuel. :The `radiating structure 'offapplica'nts invention is of considerable area with respect to the size' of the firecharnber due to the fact that by applicants novel structure the d eposited products of combustion may rcerernoved therefrom thereby insuring the continuous eiiective operation of the radiating structure and insuring an open passageway for the gaseous products of combustion from the re chamber to a ilue.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinaiter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, can be made within the scope of what is claimed Vhaving a .radiatore section formed integrally therewith and means than that `heretofore ern-- without departing from the spirit ofthe invention.

'The invention iisillustrated in the accompanying drawing,'wherein:

`Figure 1 lis 'a crosssectional view on line .I-I of :Figure .2 `of `a furnace structure vformed in accordance with :applicants invention.

Figure 2 v-is a cross sectional elevation taken on line .2-.2 of Figure .1.

By'referr'in'g to the drawing and Figure l in particular, .it will be 'observed "that vthe device of the invention comprises a warm Jair furnace, the essential portion ci which is a combined fire chamber indicated 'by the numeral It and v`a directly connecting .radiating structure indicated generally by tnefnurn'eral fi I. The fire chamber is'provi'ded with conventional fgrates 'I2 'and 'the radiating structure is provided with a vvseries o'f hollow baflies I3.

By referring to Figure 2 of the drawing,iit will beobserved'fthat an opening I4 is provided communicating with the dire chamber It), 'which opening servestas .a feed door yand yis preferably provided with 'collar-like extension I5 and a conventional lhinged ilre door it. like :extension 1.15 is rprovided to conveniently space apart .from the actual furnace structure I- and -I-I a double-walled outer casing vI'l which is :provided'in double wall formation so that suitable :insulation may be `positioned between and thereby conne the heat transferred tothe area between the casing and thc Afurnace structure to that locality which in t'he'drawing is 'generafl-lyindi'cated .bythe numeral I8. The casing I1 extends `upwardly beyond 'the uppermost portions of `the :furnace structure iii land H and forms faheat=dome from which aplurality `of Warm airconductin'g `pipes 'i9 lead to desirable locations. It is understood'that in accordance witht-he usual customary vprovisie-n for providing forthe'entrance of cold air into in which the furnace is :positioned or may be connected with'othe-rzroorns by means of suitable connecting cold air returns.

The products of combustion originating in the fire chamber I0 of the furnace structure pass, as is best illustrated in Figure 2 of the drawing, through a vertically positioned grate-like structure 2li into the integrallyvassociated radiating structure I I and pass therethrough in a passageway 2| defined by the hollow baiile members I3. At the extreme opposite end of the radiating structure, with respect to the iire chamber I0,

The collar-l the lovvernriost portions of the space i8, openings, not shown, are. provided landA may yconnect directly withthev room the various products of combustion are directed through a ue pipe 22 which is preferably placed in communication with a suitable chimney or other comparable structure. As is best illustrated in Figure 1 of the drawing, the flue pipe connection 22 is located near the lowermost portion of the radiating structure II so as to insure the satisfactory transfer of most of the heat generated before the products of combustion leave the radiating structure II. It is possible to locate the flue pipe connection 22 in this position due to novel means incorporated in the furnace structure for removing the y ash and other deposited products of combustion which would otherwise tend to fill up and block the radiating structure II and the passageway 2| therethrough. The novel means for removing the ily ash comprises the formation of the lowermost or bottom section of the radiating structure I I in the form of a movable hinged bottom member 23 which is pivoted to the radiating structure II by means of a pivot 24 which extends beyond the casing Il, and as illustrated in Figure 2 of the drawing, a handle is affixed to the outermost end of the pivot member 24 so that downward movement imparted to the handle results in moving the movable bottom member 23 of the radiating structure downwardly and thus permits accumulated ash or other deposits thereon to be directed thereby into an adjoining ash pit 26 which is located beneath the fire chamber I0. Suitable springs 21 are positioned about the pivot member 24 in a manner normally holding the entire hinged bottom member 23 upwardly against the bottoms of the hollow baiiies I3. In Figure 1, the hinged bottom member 23 is also illustrated in dotted lines in its lowered position thereby providing for the automatic removal of fly ash and other deposited products of combustion.

It is obvious that the hinged bottom member 23 may be formed of any suitable material and that the location of its hinge member 24 may be varied all within the scope of this invention as may be the means employed for positioning it against the bottoms where it forms a practical and eflcient closure.

It will thus be seen that upon a re being established in the fire chamber I of the furnace structure upon the grates I2 therein, the material being burned will be retained by means of the vertically positioned grate-like structure 20 which will, however, not interfere with the sideward travel of the gaseous products of combustion into the adjoining radiating structure II and their passageway therethrough by means of the passageway 2l defined by the hollow bale members I3. In this connection, it will be noted that the hollow bailles I3 are provided with integrally formed bottom members while they are open at their tops so that they form pockets in the radiating structure.

The gaseous products of combustion carry with them the fly ash and other heavier products of combustion which are ordinarily deposited in the passageway 2I on the hinged bottom member 23 of the `hollow bailies I3r thereof. The gaseous products of combustion eventually leave the radiating structure II of the furnace unit by means of the flue pipe connection 22. The furnace structure thus provides a radiating structure in direct connection with the fire chamber I 0 in that the complete travel of the gaseous products of combustion is sidewardly away from the re chamber I 0 and around the various hollow bailie members I3, the number of which may be obviously varied in accordance with the degree of heat transfer desired. The air in the space I8 surrounding the actual furnace structure is thus readily heated by the transfer of heat from the structure of the fire chamber III and the radiator structure I I, the pockets formed by the hollow baiiles I3 greatly facilitating the heat transfer. The heated air is conveniently directed away from the furnace structure itself by means of conventional pipes I9 which may obviously lead to desirable locations. It will be observed that theY deposited products of combustion are easily removed to the ash pit 26 from the radiator structure I I by means of the tiltable bottom member 23'.

The furnace structure is provided with the `customary draft and check controls so that the combustion taking place therein may be adequately.

controlled. The ash pit 26 is provided with a door structure similar in all respects to that heretofore described in connection with the re chamber I Il.

Having th-us described my invention, what I claim is:

1. A furnace structure comprising a rectangular heating structure, one end thereof adapted to form a fire box, grates positioned in the said fire box, a radiating section in communication with said fire box, vertical grates separating the said re box from the said radiating section, a plurality of baiiles positioned in the said radiating section to form through for the products of combustion, a flue pipe in communication with the said radiating section, a removable bottom member for said radiator member, means for normally holding the said removable bottom member in closed position, and means for imparting movement to the said removable bottom member so as to move the same away from the said radiator structure.

2. In a warm air furnace, the combination of a fire box and a radiating structure, the said radiating structure comprising an formed assembly of hollow baffles open at their tops forming a winding passageway through the said radiator, a top member covering and enclos-` ing the said winding passageway, a bottom member movably positioned with respect to the said radiator and normally forming a bottom for the said winding passageway, said bottom member in for depressing the said bottom member to open the same, and means positioned between the radiating structure and ing burning fuel in the former.

latter from entering the ADAM KAMBER.

integrally means for holding ,theclosed position, means the fire box for prevent- 

